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45A198 — INSERT,TUBE FITTING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

45A198: INSERT,TUBE FITTING.

The INSERT,TUBE FITTING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, special_features: 45 DEG FLARE IN FLANGE;0.744 IN.LG O/A IN, style_designator: PLAIN, casehardening_indicator: NOT CASEHARDENED, end_item_identification: HEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS), flange_outside_diameter: 0.797 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-164-7974, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
45A198
NSN: 4730-01-164-7974
NIINs: 011647974, 011647975, 011647976
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 088A2 — C SYSTEMS LLC DBA CRAIG SYSTEMS DBA EASTERN TECHNOLOGIES (USA)
SPECIFICATIONS
materialCOPPER ALLOY
special_features45 DEG FLARE IN FLANGE;0.744 IN.LG O/A IN
style_designatorPLAIN
casehardening_indicatorNOT CASEHARDENED
end_item_identificationHEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS)
flange_outside_diameter0.797 INCHES NOMINAL IN
sleeve_outside_diameter0.750 INCHES NOMINAL IN
tube_inside_diameter_for_which_designed0.375 INCHES NOMINAL IN
NSN4730-01-164-7974
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 45A198 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STYLE DESIGNATOR: PLAIN
•
TUBE INSIDE DIAMETER FOR WHICH DESIGNED: 0.375 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
FLANGE OUTSIDE DIAMETER: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORPLAIN
TUBE INSIDE DIAMETER FOR WHICH DESIGNED0.375 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
END ITEM IDENTIFICATIONHEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS)
FLANGE OUTSIDE DIAMETER0.375 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
2BD324Reference document
Same NSN cross-reference
Reference document — Secondary reference
45A198-P1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 45A198?
45A198 is a INSERT,TUBE FITTING.
What parts can replace 45A198?
There are 2 known substitutes for 45A198: 2BD324, 45A198-P1. Substitute compatibility should be verified for your specific system.
What is the NSN for 45A198?
45A198 is cataloged in the U.S. Government catalog under NSN 4730-01-164-7974. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.